Caption: Common blue damselfly (Enallagma cyathigerum) trapped on the leaf of an English sundew (Drosera anglica). Also known as the common bluet, this small damselfly inhabits a wide range of freshwater habitats throughout the UK. Sundews make up the largest group of carnivorous plants, which trap and digest insects using droplets of mucilage (a sticky, glue-like secretion) on their surfaces. Photographed in Dorset, England, in July.